pDCs from the melanoma environment responded to TLR-L stimulation.

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Presentation transcript:

pDCs from the melanoma environment responded to TLR-L stimulation. pDCs from the melanoma environment responded to TLR-L stimulation. Tumor-infiltrating cells or PBMC from patients with melanoma or healthy donors (HD) were stimulated with TLR7-L (Flu virus) or TLR9-L (CpGA). Expression of costimulatory molecules and cytokine secretion was evaluated 24 hours later. A, percentages of expression (top) and mean fluorescence intensity (MFI; bottom) of CD40 and CD86 on pDCs from tumor (n = 13–15) or blood (n = 26) of patients with melanoma compared with healthy donors (HD; n = 19). B, IFN-α and IP10 were measured in the supernatants 24 hours later. Results were standardized by calculating the cytokine production per pDC in each sample (n = 33, 19, and 19, respectively). C, IFN-α intracellular labeling was performed within pDCs from melanoma patients or healthy donors (n = 25, 30, and 22, respectively) P values were calculated using the two-way RM ANOVA test (straight line) or the Mann–Whitney test (dotted lines). *, P < 0.05; **, P < 0.01; ***, P < 0.001. Caroline Aspord et al. Cancer Immunol Res 2013;1:402-415 ©2013 by American Association for Cancer Research